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.box{
    width: 228px;
    height: 270px;
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    margin: auto 100px;


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.box product{
    width: 100%;
}
.box h3{
    height: 52px;
    padding-left: 24px;
    padding-right: 20px;
    margin-top: 25px;
    font-size: 14px;
    font-weight: 400;
    

}
.box p{
    margin-left: 24px;
    font-size: 16px;
    color: darkgrey;
}
.box p span{
    color: tomato;
}
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    <div class="box">•
        <img src="./images/product.png" class="product">
        <h3>Android网络图片加载框架详解</h3>
<p><span>高级</span>• 1125人在学习</p>
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